# Eye Wash Supplies

Whether an eye wash is a cheap personal squeeze bottle or a wall-mounted emergency station decides whether it is a legal substitute for required safety equipment or only a supplement to one. ANSI/ISEA Z358.1 compliance, not price, is what a workplace buyer needs; a home buyer mainly needs the right rinse solution and bottle size.

## How it works

A personal eye wash is a squeeze bottle of saline the user tips to one eye and fires by hand pressure; because the stream depends on how hard someone squeezes, it cannot guarantee the steady, hands-free flow regulators require, so it only supplements real equipment. A portable eyewash station holds solution in a sealed tank, gravity-fed or lightly pressurized, behind a single lever or push-paddle: one action, done in under a second, opens both eyes' nozzles at once and pops their dust covers off, and the valve then stays open hands-free so the injured person can keep both eyes in the stream without holding anything down. Because the station is not plumbed to a water line, its tank must be refilled or swapped rather than running continuously, which is the trade for needing no plumbing at all.

## How an expert narrows the choice

```mermaid
timeline
  section 1 · Bottle or station
    personal_eyewash_bottle : ask Bottle size, How the bottle dispenses, Occasional or frequent use, Rinse solution : skip Mounting, Tank size, Number of eyewash heads, Eyewash only or with a shower, Indoor or outdoor rated, Drench hose included, Bacteriostatic additive included
    portable_eyewash_station : ask Mounting, Meets the emergency-eyewash standard, Tank size, Rinse solution, How it turns on, Eyewash only or with a shower, Indoor or outdoor rated, Drench hose included, Bacteriostatic additive included : skip Bottle size, How the bottle dispenses, Occasional or frequent use
    plumbed_faucet_mounted_eyewash : ask How it turns on, Meets the emergency-eyewash standard, Nozzle cover removal : skip Bottle size, How the bottle dispenses, Occasional or frequent use, Mounting, Tank size, Rinse solution, Eyewash only or with a shower, Indoor or outdoor rated, Drench hose included, Bacteriostatic additive included
  section 2 · Mounting
    wheeled_cart : ask Tank size
    floor_standing : ask Tank size
    countertop : skip Tank size
    wall_mounted : skip Tank size
```

1. **Bottle or station.** A squeeze-bottle rinse, a wall-mounted station, or a plumbed faucet unit?
   A squeeze bottle is cheap and portable but, per state safety regulators, cannot meet the emergency-eyewash standard; a station is built and tested to meet it. Everything else follows from this.
   If personal_eyewash_bottle: ask Bottle size, How the bottle dispenses, Occasional or frequent use, Rinse solution; skip Mounting, Tank size, Number of eyewash heads, Eyewash only or with a shower, Indoor or outdoor rated, Drench hose included, Bacteriostatic additive included.
   If portable_eyewash_station: ask Mounting, Meets the emergency-eyewash standard, Tank size, Rinse solution, How it turns on, Eyewash only or with a shower, Indoor or outdoor rated, Drench hose included, Bacteriostatic additive included; skip Bottle size, How the bottle dispenses, Occasional or frequent use.
   If plumbed_faucet_mounted_eyewash: ask How it turns on, Meets the emergency-eyewash standard, Nozzle cover removal; skip Bottle size, How the bottle dispenses, Occasional or frequent use, Mounting, Tank size, Rinse solution, Eyewash only or with a shower, Indoor or outdoor rated, Drench hose included, Bacteriostatic additive included.
   Skip if already known: a query that already names 'bottle', 'squeeze bottle', 'station', 'wall-mounted', or 'faucet-mounted', an earlier answer naming a workplace install versus a first-aid kit or glovebox.

2. **Mounting.** Wall-mounted, floor-standing, on a wheeled cart, or countertop?
   Only matters once a station is chosen. A wheeled cart trades reservoir size for moving between job sites; a wall unit trades portability for a smaller footprint and an easier refill routine.
   If wheeled_cart: ask Tank size.
   If floor_standing: ask Tank size.
   If countertop: skip Tank size.
   If wall_mounted: skip Tank size.
   Skip if already known: an earlier answer naming 'personal_eyewash_bottle', an earlier answer naming wall-mount, floor-stand, or wheeled/cart.

## What to surface

### Bottle or station

Whether the product is a personal squeeze-bottle eye rinse, a self-contained non-plumbed portable eyewash station, or a plumbed faucet-mounted eyewash device. A state safety regulator's own enforcement guidance states hand-held squeeze bottles do not meet the minimum emergency-eyewash requirement and are only supplementary, and faucet-mounted devices needing two valves fail the same one-second rule; a portable station or a correctly built faucet unit is tested to meet it. Asking this first decides which whole spec set applies. [1] [2]

Values: personal_eyewash_bottle, portable_eyewash_station, plumbed_faucet_mounted_eyewash.
Question to ask: A squeeze-bottle rinse, a wall-mounted station, or a plumbed faucet unit?

Used as: top-level split, filter. Data: on the listing, backfill cost low. Look for it as: Almost always clear from the product title ('Personal Eyewash Bottle' vs 'Portable Eyewash Station' vs 'Faucet-Mounted Eyewash').
Title keyword match: 'faucet-mounted' or 'two-valve' points to plumbed_faucet_mounted_eyewash; 'station' with a stated tank gallon size points to portable_eyewash_station; a title naming 'station' but giving only a bottle fl oz volume (a wall-bracket-for-bottle kit) or 'bottle' points to personal_eyewash_bottle.

### Mounting

How the station is set up: fixed to a wall, standing on the floor, mounted on a wheeled cart, or sitting on a counter. A wheeled cart can move between job sites or follow a mobile crew; a wall or floor unit stays put but usually holds more fluid and takes less floor space to access quickly. [2]

Values: wall_mounted, floor_standing, wheeled_cart, countertop.
Question to ask: Wall-mounted in one spot, floor-standing, or a wheeled cart?

Used as: top-level split, filter. Data: on the listing, backfill cost low. Look for it as: Stated directly in the title or product type ('wall-mount', 'wheeled eyewash station').
Title keyword match; default to wall_mounted if not stated, since it is the most common form.

### Meets the emergency-eyewash standard

Whether the device is built and tested to the ANSI/ISEA Z358.1 minimum performance requirements for emergency eyewash equipment, or is sold only as a supplementary rinse that does not meet them. A workplace legally required to provide emergency eyewash for corrosive or irritant chemical exposure must install equipment that meets Z358.1; a squeeze bottle cannot satisfy that requirement, and even some stations are sold without being verified to it. [1] [2]

Values: meets_ansi_z358_1, supplementary_not_compliant, unspecified.
Question to ask: Does it need to meet the official eyewash standard?

Used as: filter, shown on the card. Data: needs research, backfill cost low. Look for it as: Compliant stations usually say 'ANSI Z358.1 compliant' in the title or bullets; squeeze bottles almost never claim this.
Keyword match on 'ANSI Z358.1' or 'Z358.1-compliant'; default personal_eyewash_bottle listings to supplementary_not_compliant per regulator guidance, default unlabeled stations to unspecified.

### Rinse solution

What fluid fills the bottle or station tank: buffered isotonic saline, plain (non-buffered) saline, a boric-acid-based rinse, or purified water. Buffered isotonic saline is formulated close to the eye's own salt balance, unlike plain water or an unbuffered rinse, which matters most for a rinse meant to be used more than once. [5] [4]

Values: buffered_isotonic_saline, plain_saline, boric_acid_based, purified_water, unspecified.
Question to ask: Buffered saline for comfort, or is any sterile rinse fine?

Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Usually stated on the label ('buffered saline', 'isotonic', 'boric acid') and often in the product title.
Title/label keyword match on 'buffered saline'/'isotonic'/'boric acid', or a common buffered-saline brand name (e.g. 'Eyesaline'); default to unspecified if none of those appear.
Chart: position on a comfort axis, buffered isotonic saline highest.

### Bottle size

Roughly how much rinse the personal bottle holds: a travel-size trial bottle, a standard first-aid-kit bottle, or a large refill-size bottle. A travel size fits a glovebox or purse but empties in one rinse; a large refill-size bottle is meant to restock a first-aid station or outlast several uses, not to be carried. [1]

Values: travel_size, standard_size, large_refill_size.
Question to ask: A small bottle to carry, or a large refill?

Used as: filter. Data: on the listing, backfill cost low. Look for it as: The stated fluid ounce/mL volume in the title or bullets.
Bucket the stated volume into the three tiers; default to standard_size if no volume is listed.

### Tank size

Roughly how much fluid the station's tank holds before it needs a refill or swap: compact, mid-capacity, or large-capacity. A bigger tank sustains a longer flush and serves more people between refills, but it is heavier to mount, move, or swap, which matters most for a wheeled or shared station. [1]

Values: compact_capacity, mid_capacity, large_capacity.
Question to ask: A compact tank, or a larger one that needs refilling less often?

Used as: filter. Data: needs research, backfill cost low. Look for it as: Usually stated as a gallon or liter tank size in the title or spec bullets.
Bucket the stated tank volume into the three tiers; default to mid_capacity if not stated.
Chart: position on a capacity axis, compact lowest.

### How it turns on

What the user does to start the flow: a single stay-open lever or paddle, a momentary push-and-hold, a manual squeeze, or a faucet with two valves to set. The standard requires activation in one second or less by one simple action that then stays on hands-free, because a person with chemicals in both eyes is temporarily blinded; a device needing two valves or continuous squeezing does not meet that bar. [1] [2]

Values: single_action_stay_open, momentary_push_or_hold, manual_squeeze, multi_valve_faucet_mounted.
Question to ask: Stay running hands-free once started, or a quick squeeze?

Used as: filter, shown on the card. Data: needs research, backfill cost medium. Look for it as: Stations usually name the mechanism ('push-paddle', 'pull-lever', 'stay-open valve'); bottles are manual_squeeze by default.
Keyword match on paddle/lever/valve terms for stations; default personal_eyewash_bottle to manual_squeeze and unlabeled faucet-mount units to unspecified-style multi_valve only if the title says 'faucet'.

### How the bottle dispenses

Whether the bottle pairs with a cap that doubles as an eye cup, dispenses as a plain squeeze stream with no cup, or is a single-use sealed ampoule. An eye-cup cap lets the user hold rinse against the open eye rather than just splashing it, which matters for someone trying to flush debris rather than just dampen the eye. [1]

Values: eyecup_cap, squeeze_stream_no_cup, single_use_ampoule.
Question to ask: Eye cup, plain stream, or single-use ampoule?

Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Usually shown in product photos and called out in the title ('with eye cup').
Keyword/image match on 'eye cup'; default to squeeze_stream_no_cup when not mentioned.

### Occasional or frequent use

Whether the bottle is meant for an occasional rinse after debris or a chemical splash, or for more frequent comfort use. Eyewash can relieve sensitive or irritated eyes, but using it heavily rather than occasionally has been linked to reddening and itchiness, so a frequent-comfort user and an occasional-emergency user want different label claims. [4]

Values: occasional_debris_or_splash_rinse, frequent_comfort_use.
Question to ask: An occasional rinse for debris, or something to use often for comfort?

Used as: filter. Data: needs research, backfill cost medium. Look for it as: Rarely explicit; infer from marketing language ('daily comfort' vs 'first aid', 'emergency').
Keyword match on 'daily'/'comfort' versus 'first aid'/'emergency'/'debris'; default to occasional_debris_or_splash_rinse.

### Bacteriostatic additive included

Whether the station ships with, or requires adding, a bacteriostatic additive to the tank water to stop bacteria, fungus, algae and acanthamoeba growing in it between refills. A non-plumbed station's water sits sealed in its tank for months, so without an additive it can grow bacteria, fungus, algae or acanthamoeba; the additive and its replacement bottle are a real recurring cost and maintenance step, not an optional accessory. [6] [7]

Question to ask: Does the tank include a bacteria-preventing additive?

Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Stated in the product description or bundled-accessory list ('bacteriostatic additive included', a named preservative, or a separate replacement-bottle SKU).
Keyword match on 'bacteriostatic'/'preservative'/'additive'; default to included for name-brand gravity-fed stations, since the leading brand states all its portable units require one, and unspecified if neither the additive nor a replacement-bottle accessory is mentioned.

### Number of eyewash heads

Whether the station has one combined head for both eyes or two separate nozzle heads, one per eye. Two separate heads let each eye get its own adjusted stream so someone can position each nozzle independently, instead of relying on one wide spray to cover both at once. [2]

Values: single_combined_head, dual_separate_heads.

Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Usually shown in the product photo and sometimes named ('dual-head' or 'twin nozzle').
Keyword match on 'dual'/'twin'; default to dual_separate_heads for full-size stations since it is the common form.

### Eyewash only or with a shower

Whether the unit is a standalone eyewash or a combination unit that also includes a body/drench shower, tested to run both at once. A combination unit covers splashes to the face and body as well as the eyes, but it is a bigger, plumbed-style fixture; a standalone eyewash is smaller and cheaper where only eye exposure is a risk. [2]

Values: standalone_eyewash, combination_eyewash_and_shower.
Question to ask: Eyewash only, or combined with a body shower?

Used as: filter. Data: on the listing, backfill cost low. Look for it as: Stated directly in the title ('eyewash/shower combination unit').
Keyword match on 'shower' in the title; default to standalone_eyewash.

### Indoor or outdoor rated

Whether the station is rated only for indoor use or is built and insulated for outdoor installation where it could freeze. An outdoor station needs insulation or heat tracing to keep the fluid from freezing; an indoor-only unit left outside in winter can fail exactly when it is needed. [2]

Values: indoor_only, outdoor_rated_freeze_protected.
Question to ask: Will it live indoors, or somewhere it could freeze?

Used as: filter. Data: on the listing, backfill cost low. Look for it as: Stated in the title or bullets ('outdoor', 'freeze-protected', 'insulated').
Keyword match on 'outdoor'/'freeze'; default to indoor_only if not stated.

### Drench hose included

Whether the station is bundled with a flexible hand-held drench hose for flushing a wider area of the face or body. A drench hose extends rinsing beyond the eyes, but regulators treat it, like a squeeze bottle, as supplementary and not a substitute for a compliant eyewash or shower on its own. [1] [3]

Values: included, not_included.
Question to ask: Do you also want a hand-held drench hose included?

Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Stated in the title or bullets ('with drench hose').
Keyword match on 'drench hose'; default to not_included.

### Nozzle cover removal

Whether the protective cap or dust cover over the nozzles comes off by itself the moment the device is activated, or has to be removed by hand first. Regulators treat a cover that needs a separate motion to remove as an obstacle that can cost an injured person critical seconds; a cover that is pushed clear by the water pressure itself does not. [1] [3]

Values: automatic_release_on_activation, manual_removal_required, no_cover.

Used as: filter, shown on the card. Data: needs research, backfill cost high. Look for it as: Rarely stated directly; infer automatic_release_on_activation for compliant stations unless the listing says the cap must be removed first.
Not usually in listing copy; defaults to automatic_release_on_activation for ANSI-labeled stations and no_cover for bottles.

## What you give up

- A compliant station is sized and tested to flush both eyes through a real exposure, but it costs more and needs permanent floor or wall space; a squeeze bottle is cheap and portable but, per state regulator guidance, is only a supplement, never a substitute for a compliant station. [1] Board branch: "Compliant station vs. supplementary bottle".

## Words you will meet

- **ANSI/ISEA Z358.1**. The American national standard that sets minimum performance requirements for emergency eyewash and shower equipment.
- **Stay-open (hands-free) valve**. A valve that, once triggered by one action, keeps flowing on its own so the user does not have to hold anything down.
- **Drench hose**. A flexible hand-held hose used to flush a wider area of the face or body; it supplements but does not replace an eyewash or shower.
- **Combination unit**. A single fixture that combines an eyewash with a body shower, built and tested to run both at the same time.
- **Gravity-fed**. A station that releases fluid using the weight of the water in its tank rather than being connected to pressurized plumbing.
- **Buffered isotonic saline**. A salt-water solution adjusted to be close to the eye's own salt balance, the composition professionals default to over plain water for a rinse used more than once.
- **Single-use ampoule**. A small sealed single-dose vial of sterile rinse that is opened and used once then thrown away, instead of a refillable squeeze bottle.
- **Bacteriostatic additive**. A preservative added to a station's tank water to stop bacteria, fungus, algae and acanthamoeba from growing in it while it sits sealed between refills.
- **Boric acid solution**. An older, low-cost rinse base used in some eye washes instead of saline.
- **Supplementary equipment**. A regulator's term for equipment, like a squeeze bottle or drench hose, that helps but does not by itself satisfy the emergency-eyewash requirement.
- **Corrosive (by pH)**. A substance a regulator classes as corrosive to tissue when its pH is 2.5 or below, or 11.0 or above; exposure risk to these chemicals is what triggers the requirement to provide eyewash equipment at all.
- **Safety Data Sheet (SDS)**. A chemical's safety label document; its first-aid section often tells a worker to flush exposed eyes with water, and its hazard section is what actually decides whether eyewash equipment is legally required.
- **Eye cup**. A small cup, often doubling as the bottle's cap, shaped to hold rinse solution against an open eye rather than just splashing it.
- **Self-contained station**. A portable eyewash station that stores its own supply of fluid in a tank instead of connecting to a building's water line.

## Where we made a call

- A workplace exposed to corrosive or strong-irritant chemicals must install Z358.1-compliant equipment; a squeeze bottle only supplements it. (confidence high). Confirmed independently by Washington State DOSH's enforcement directive and the University of Washington's own design standard, which cite the same ANSI Z358.1 standard and pH thresholds. [1] [2]
- Eyewash can relieve sensitive eyes occasionally, but frequent or prolonged use is linked to reddening and itchiness rather than ongoing relief. (confidence medium). Single-sourced to Wikipedia's Eyewash article; an independent ophthalmology source corroborating the overuse effect was not reachable this run. [4]

## References

1. [DOSH Directive 13.00: Emergency Washing Facilities](https://www.lni.wa.gov/dA/91cf4ac7fc/DD1300.pdf) (regulator). Supports: Hand-held squeeze bottles do not meet ANSI Z358.1 minimum requirements and are only supplementary; Activation must be a single simple action done in one second or less; multi-valve faucet devices do not qualify; Corrosive is defined as pH 2.5 or below, or 11.0 or above; tepid fluid is 60-100°F; Protective nozzle/dust covers must come off without a separate motion when the device is activated; Emergency washing facilities include showers, eyewashes, eye/face washes, and hand-held drench hoses; Portable eyewash units, shown separately from squeeze bottles, can meet ANSI Z358.1 requirements; Faucet-mounted eyewash devices are a distinct category; single-valve designs can meet Z358.1, two-valve designs cannot.
2. [UW EH&S Design Standard: Emergency Washing Equipment (EWE) Requirements](https://facilities.uw.edu/files/media/uwf-ds-eh-and-s-emergency-washing-equipment.pdf) (spec sheet). Supports: A plumbed or portable eyewash, shower, or combination unit must meet the current edition of ANSI Z358.1; Activation must be one simple action and must not take longer than one second; Portable, non-plumbed eyewash units are approved only where plumbing is not available; Corrosive is defined as pH equal to or less than 2.5, or equal to or greater than 11; Combination shower-and-eyewash units must be tested to run both components simultaneously; Outdoor emergency washing equipment must be insulated and heat traced to prevent freezing.
3. [UW Environmental Health & Safety: Emergency Washing Equipment](https://ehs.washington.edu/workplace/emergency-washing-equipment) (spec sheet). Supports: Weekly testing: water flow must start within one second of activation and remain on hands-free; Sufficient water pressure must open the dust covers when the eyewash is activated; A drench hose is an emergency washing device on a flexible hose used to flush the face or body.
4. [Eyewash](https://en.wikipedia.org/wiki/Eyewash) (primer). Supports: Eyewash is a fluid, commonly saline, used to physically wash the eyes of contaminants; Eyewash can relieve sensitive eyes, but prolonged use can cause reddening and itchiness; OSHA's 29 CFR 1910.151 requires suitable facilities for quick drenching or flushing of the eyes and body.
5. [Saline (medicine)](https://en.wikipedia.org/wiki/Saline_(medicine)) (primer). Supports: Normal saline is 0.9% sodium chloride in water, approximately isotonic to blood serum; Saline is used for cleaning wounds and for eye and contact lens care.
6. [Guardian Equipment G1540 AquaGuard Portable Eyewash (product listing)](https://www.safetyemporium.com/g1540) (retail listing). Supports: Additive protects against growth of bacteria, fungus, algae and acanthamoeba in the tank; Fill unit with clean potable water and add bacteriostatic additive, supplied with the unit; Change tank water every six months and add one bottle of preservative; 16-gallon units use a green polyethylene tank; the G1562 model uses a stainless-steel tank.
7. [Guardian Equipment G1540BA-R Bacteriostatic Additive, Replacement Bottle (product listing)](https://www.zoro.com/guardian-equipment-bacteriostatic-additive-replacement-bottle-8-oz-g1540ba-r/i/G9273969/) (retail listing). Supports: Bacteriostatic additive for eyewash stations is sold as its own recurring replacement-bottle SKU.