You absolutely cannot wash the internal filter media of 3M particulate filters or cartridges, as water and detergents permanently destroy the filter's efficiency. However, you can wipe down the exterior of hard-plastic filters and properly wash the rubber facepiece of your respirator.
3M recommends replacing your respirator filters based on type, usage, and environmental conditions. The three primary rules are outlined below.
To clean a reusable 3M respirator (like a 6000 or 7500 series), remove all filters and cartridges. Wash the facepiece in warm water (under 120°F) with mild, neutral soap. Scrub gently, rinse completely, and air dry in a non-contaminated area. Never get filter media wet.
Clean your reusable 3M respirator after every use to maintain hygiene and extend the mask's lifespan. For intermittent use or between tasks during the same shift, you can perform a thorough wipe-down. If the mask is shared or used in clinical settings, it must be sanitized after every shift.
Yes, 3M makes specific reusable respirators, but whether a mask is reusable depends on its design.
No, you should never wash or submerge respirator filters in water. Doing so destroys their electrostatic charge and structural integrity, ruining their ability to capture particles.
The lifespan of a 3M respirator depends on whether you mean its shelf life (unopened) or service life (how long it lasts while actively being worn).
Dust, sunlight, heat, extreme cold, excessive moisture, and damaging chemicals can affect respirators. They must be cleaned properly after each use. They must be stored in a clean dry place.
The 3M™ Respirator Cleaning Wipe 504 is used to clean 3M™ Reusable Respirators. Individually packed towelettes will not damage the facepiece materials. The 3M™ Respirator Cleaning Wipes 504, cleans and refreshes 3M™ Facepiece Reusable Respirators, reducing dirt and perspiration.
To determine if a respirator cartridge or filter is bad, check for a sudden detection of chemical odors or tastes, increased breathing resistance, or physical damage. If any of these warning signs occur, leave the contaminated area immediately and replace the cartridge.
3M rates the Aura 9300+ series for a five-year shelf life when the mask is stored in its original wrapper under cool, dry conditions. After that period the electrostatic filter media can lose efficiency and the head-straps may begin to degrade, so the respirator may no longer achieve its assigned protection factor.
OSHA’s primary rule for respirators is the Respiratory Protection Standard (29 CFR 1910.134). It mandates that employers must first use feasible engineering controls to eliminate airborne hazards. If those are insufficient, employers must provide appropriate, NIOSH-certified respirators, along with a comprehensive protection program at no cost to the employee.
4) Manually clean the facepiece by immersing it in warm water not to exceed 120°F (49°C), and scrub with soft brush until clean. Add neutral detergent. Do not use cleaners containing lanolin or other oils. NOTE: Solvents and strong detergents may damage 3M facepieces and should not be used for cleaning.
A simple N95 like the 3M 8511 works for dust, while a half-face respirator with P100 filters, such as the 3M 07002, handles vapors.
Clean a reusable respirator by removing the filters/cartridges and washing the facepiece with warm water (under 120∘F120 raised to the composed with power cap F120∘𝐹) and a mild dish soap. Avoid harsh solvents, hot water, or products containing oils, lanolin, or alcohol, as these degrade and damage the rubber or plastic components.
To clean a reusable 3M respirator, safely remove all filters and cartridges first. Immerse the facepiece in warm water (under 120∘F120 raised to the composed with power F120∘F) with a neutral detergent, scrub with a soft brush, and disinfect using a quaternary ammonia solution. Rinse with fresh warm water and air-dry in an uncontaminated area.
Following the manufacturer's instructions, wash reusable respirator face pieces. The face pieces should be cleaned with disinfecting soap, thoroughly rinsed and dried. Dispose of cartridges and prefilters when you smell or taste contaminants, or if your eyes, nose, or throat become irritated (they cannot be cleaned).
Under 1910.134(h)(2), respirators must be stored in a way that protects them from dust, sunlight, extreme temperatures, moisture, and chemicals. They should be kept in a sealed container or clean area—not hung on nails or tossed into toolboxes.
Healing lungs from dust involves stopping further exposure, allowing the body’s natural self-cleaning mechanisms (mucus and coughing) to work, and promoting recovery through hydration and exercise. While minor dust irritation clears on its own, chronic exposure requires medical intervention to manage damage, as some scarring, such as from silica, is irreversible.
The lifespan of a respirator depends entirely on the type of mask and the filters you are using.
Cleaning is recommended after each use. CAUTION Do not use cleaners containing lanolin or other oils on these products. For information regarding cleaning in an automated respirator washing machine, please contact 3M. To clean the respirator, the 3M™ 105 Wipe should be used to wipe the face seal of the product.
3M's recommendation is that respirators be disposed of after the stated use by date. Always inspect the respirator and conduct a user seal check before use per the IFU. If the person wearing the respirator cannot achieve a proper seal, then the respirator should not be used.
It is generally not recommended to use a skincare face mask that expired three years ago. Over time, the preservatives break down, making the mask less effective and significantly increasing the risk of bacterial contamination. Using it can cause skin irritation, redness, or breakouts.