Pressure Washer Safety: Injuries, Protective Gear and Do’s and Don’ts
Quick answer: Wear eye protection, gloves, sturdy shoes and hearing protection for gas units. Never point the wand at people or pets, use gas machines outdoors only, and seek medical help immediately for any skin-breaking injury, even a small puncture.
Last updated: October 2026. Pressure washers can cut skin, injure eyes and cause serious injection injuries. This guide summarises safety advice from United Rentals, Pressure King and Home Depot. It is general information, not medical advice, so read your manual and seek medical attention when hurt.
What protective gear should you wear?
- Long pants and sleeves.
- Non-slip, closed-toe boots.
- Safety glasses, and a full face shield above 2,000 PSI, according to United Rentals.
- Heavy waterproof gloves.
- Ear protection for gas models.
What injuries are possible?
Pressure King lists lacerations, eye injuries and high-pressure injection wounds that force water, dirt and bacteria into tissue. It warns that small punctures can look minor but hide serious muscle, nerve and tendon damage, with risks including infection, disability and amputation.
What should you do after an injury?
- Seek immediate medical attention for any skin-breaking injury.
- Do not squeeze, massage, cut or drain the wound.
- Tell medical staff it was a high-pressure injection.
- Turn off the machine and keep bystanders away.
What are the do’s?
- Start with the widest nozzle (white or green) and use the red zero degree nozzle only when necessary.
- Engage the trigger lock when not spraying.
- Depressurize before disconnecting parts.
- Inspect the hose, trigger and connections before use.
- Keep children, pets and bystanders away.
- Wear closed-toe footwear and eye and ear protection (Home Depot).
What are the don’ts?
- Never spray at people, pets or into roadways.
- Never use your hand to find a hose leak.
- Never spray glass with a narrow nozzle.
- Never use a ladder. Use extension wands instead, per United Rentals.
- Never run gas units indoors because of carbon monoxide.
What electrical precautions apply?
United Rentals says to avoid electrical outlets and power lines and not to run extension cords through standing water. Use a GFCI outlet and an outdoor-rated cord, and keep plugs off wet ground.
How do you set up safely?
- Read the manual.
- Check hoses and fittings for damage.
- Clear the area.
- Connect water before starting.
- Start with a wide nozzle and test on a hidden spot.
What safety points apply to accessories?
Match every accessory to your machine’s PSI rating. A gun, wand or hose rated below your pressure is a hazard. See our guns and wands guide and hose guide.
Related guides
Read how to use a pressure washer, the nozzle guide and how to start a pressure washer.
Why is a wide nozzle the safest default?
Sources consistently advise starting with the widest nozzle because a wider fan spreads force over a larger area. It reduces the chance of etching surfaces or cutting skin. Move to a narrower tip only when the dirt does not lift, and keep your feet planted so the recoil does not pull you off balance.
Safety checklist before every job
| Check | Why it matters |
|---|---|
| Hose free of bulges and cracks | A failing hose can burst under pressure |
| Trigger lock works | Prevents accidental spray |
| Nozzle clicked in fully | Loose tips can fly off |
| GFCI outlet and outdoor cord | Reduces shock risk |
| Area clear of people and pets | Protects bystanders |
| Ventilated outdoor spot for gas units | Avoids carbon monoxide |
How do you handle kickback and slips?
A pressure washer wand pushes back when you squeeze the trigger, and wet surfaces get slippery. Plant your feet, hold the wand with both hands where possible and avoid working on unstable footing. Wear non-slip boots, as United Rentals advises, and keep the hose out of walkways so nobody trips on it.
What about children, pets and plants?
Keep children and pets indoors or well away while you work. Family Handyman cautions against spraying plants, since high pressure and strong detergents can harm them. Cover delicate plants and rinse them with plain water after applying soap.
Storing safely
After use, release pressure, turn off the machine, disconnect the water and store the unit where children cannot reach it. Keep fuel in an approved container away from heat, and follow our winterizing guide before cold weather.
Frequently asked questions
Can a pressure washer cut skin?
Yes. Pressure King lists lacerations and injection wounds among the injuries.
What should I wear?
Long clothes, boots, gloves, eye protection and ear protection for gas models, per United Rentals.
Is it safe to use indoors?
Not gas units, because of carbon monoxide.
Should I use a ladder?
United Rentals says never use a ladder. Use extension wands instead.
Final verdict
Wear protection, keep people away, use the widest nozzle first and get medical help immediately for any puncture.
Sources: United Rentals, pressure washer safety; Pressure King, injury guidance; Home Depot, pressure washer tips. Related: How to use a pressure washer, Nozzle guide, How to start.
