Just In
Product Details

Envo® mask filters are individually packaged for your safety. Filters remain electrostatically charged until ready to use. Each filter has a ten-year shelf life, allowing for long-term storage. The two-piece design of the envo®mask respirator enables easy filter changes.

Note: Only envo®mask N95 filters are compatible with the envo®mask respirator body. No other filter may be used with the envo®mask body, regardless of fit. Please dispose of filters immediately following contamination or damage.

  • Product Features: envo® mask N95 respirator kit kilter is made for quarter mask and the product features are below: 
    • Compatible with Envo® mask QuickFit (Earhooks) - 73950Holo (Strap) - 73950
    • Compliant with guidelines for N95 respirators.
    • Easy-change filters and a washable plastic frame ensure long-term efficacy.
    • Easy-change filters and a washable plastic frame ensure long-term 
    • AIRgel® technology conforms to the user’s face, providing a secure seal that helps to reduce air leakage.
    • Superior comfort reduces the risk of mask-related pain or damaged skin.
    • The secure AIRgel® seal helps to prevent the fogging of glasses or goggles.
    • Envo®mask was designed for all-day comfort and protection.

The envo® mask replacement filters fit securely between the mask components protecting it from damage caused by handling. As a result, wearers of this mask avoid damaging the filter during handling and may use fewer filters in a day than the equivalent number of paper masks. This is one of the best time-saving and cost-cutting features of this mask.

While the use of this mask saves time and money, there are some guidelines for use by NIOSH that should be reviewed to help determine when you should replace a paper mask or change an envo® mask replacement filter. The envo® mask filter may look new during use, but the only way to be certain is to use a new, individually wrapped filter. 

The current NIOSH service-time-limit recommendations for non-powered particulate filter respirators are that filter elements should be replaced at the following frequencies:

  • The service life of all filters on NIOSH-approved respirators is limited by considerations of hygiene, damage, and breathing resistance. All filters should be replaced whenever they are damaged, soiled, or causing noticeably increased breathing resistance.
  • N-series filters generally should be used and reused subject only to considerations of hygiene, damage, and increased breathing resistance. However, for dirty workplaces that could result in high filter loading (i.e., 200 mg), service time for N-series filters should only be extended beyond eight hours of use (continuous or intermittent) by performing an evaluation in specific workplace settings that demonstrates: (a) that extended use will not degrade the filter efficiency below the efficiency level specified in 42 CFR 84, or (b) that the total mass loading of the filter(s) is less than 200 mg. These determinations would need to be repeated whenever conditions change or modifications are made to processes that could change the type of particulate generated in the user’s facility.
  • For healthcare applications where use is for protection against confirmed or suspected 2009 H1N1 influenza, please refer to: Interim Guidance on Infection Control Measures for 2009 H1N1 Influenza in Healthcare Settings, Including Protection of Healthcare Personnel.
  • For more information, please see the NIOSH Guidance on Extended use and Reuse of N95 Respirators.”



CDC NIOSH: TC 84A-9387




Sleepnet Corp.

Size Guidance

Size: Standard | Dimensions: 4.8” W x 3.8” H x 2.4” L

Return Policy
Project N95 can only accept returns of defective merchandise. No refunds will be required if a request is made more than 5 business days following Buyer receipt of the goods, or for open or used products. If you need to return an item, please contact us with your order number and details about the product you would like to return. We will provide you with instructions for how to return items from your order.
No reviews yet for this product

Envomask N95 Respirator Kit filter

Pack of 10, 25
United States
Our Mission
Shipped By
Sleepnet Corp.
Sold By
Sleepnet Corp.
Product Sku