How should you choose the best RZ Mask for your needs?
Not surprisingly, this is one of the most common questions we receive. Rest assured that, no matter which RZ Mask you choose, you’ll receive best-in-class performance, with 99.9% particulate filtration down to 0.1 micron in size – far exceeding the popular N95 standard.
What's the difference between our
M1, M2, and M2.5 Masks?
M1 Masks are best suited for colder weather and for tasks that require frequent removal of your mask.

M2 Masks are best suited for tasks that require frequent removal of your mask.

M2.5 Masks are best suited for wearing for longer periods of time and are highly adjustable.

Mask Shells let you have fun with your mask design or simply replace your exterior shell as needed.
M1 Neoprene Mask

The M1 is the original RZ Mask. It is constructed out of neoprene, which is a key material in wetsuits, electrical insulation, and orthopedic braces.

The characteristics of neoprene make the M1 ideal for cold to mild weather – or low intensity activity that won’t cause significant sweating.

The mask is secured to the head with a single strap around the back of the neck. This allows the user to quickly and easily apply and remove the mask. 

M2 Mesh & Nylon Masks

The M2 was created to meet the needs of customers that required a more breathable material. The mesh construction of the M2 makes it ideal in mild to warm weather, or any activity that will work up a sweat.

We also offer the special M2 Nylon. The nylon material allows us to print unique graphics and designs – keeping you stylish and safe at the same time. 

The mask is secured to the head with a single strap around the back of the neck. This allows the user to quickly and easily apply and remove the mask. 

M2.5 Mesh Mask

The M2.5 mask builds on the foundation of the standard mesh M2. It adds a unique and adjustable two-strap system – one around the neck, and one over the crown of the head.

The second strap slightly increases the time it takes to apply the mask to your head, but adds extra security for activities involving drastic movements.

It is also ideal for situations that require wearing your mask continuously for long periods (2 hours or longer). 

Mask Shells

It’s good to have a few mask shells on hand to rotate when your mask shell becomes dusty and needs to be washed.

The RZ mask shells are compatible with all RZ filters, exhalation valves and exhalation valve caps. DIY your own mask from scratch with your favorite filter and valves in minutes.

Plus, we believe that PPE can be fun, which is why we’ve created over a dozen designs for a style that is eye-catching and fun to wear.

Frequently Asked Questions

We certainly think so (and so do hundreds of thousands of happy customers)! Customers love our masks because of the replaceable filters, adjustable nose clip that reduces fogging in your glasses, dual exhalation valves that keep your mask dry, cost savings over disposable masks, comfort for wearing long periods of time, and because they work!

You can find RZ Masks conquering particulates on job sites, woodworking shops, ATV trails, gardening, travel, and so many other uses!

Our masks are not recommended for use against silica, asbestos, lead, arsenic, cadmium, 4,4-methylene (MDA), abrasive blasting or any other toxic and/or dangerous substances.

The life expectancy of your RZ Filter depends on many variables, such as; particulate exposure density, particulate exposure duration, and user breathing rate. Below are our general guidelines:

20-30 hours of continuous use in heavy dust exposure to things such as; grain bins, off-roading, construction/demolition, etc.

30-40 hours of continuous use in light dust exposure to things such as; grain bins, off-roading, construction/demolition, etc.

50-60 hours of continuous use when protecting against allergens, pollutants, odors, etc.

The filters can be replaced by turning the inside of each valve, counter-clockwise. Each filter is affixed in between the valves. Once removed, the old filter can be disposed, and the new filter can be placed in between the two valves. Turn the valves clockwise until they are tight.

Read more on our blog post, How to Change RZ Filters & Valves

How are we so confident in the performance of our products? RZ invests significant time and money into third-party testing, to independently validate the effectiveness of our masks and filters.

We chose the world-renowned Nelson Laboratories in Salt Lake City, Utah, to perform the testing of our products. Nelson Labs is known as the industry leader, employing over 500 scientists and staff – performing over 800 different laboratory tests. They serve a wide variety of customers, including medical device, pharmaceutical, and tissue companies. They were founded in 1985 by Dr. Jerry R. Nelson and Lynda S. Nelson, and have grown to 13 global testing sites as of 2020. Nelson Labs facilities are FDA-registered as a GMP, GLP, and GTP testing lab with ISO 17025 accreditation.

Read more about our testing process and standards, Testing Makes a Difference

No! As long as you have the correct size mask and have adjusted the nose piece to create a seal at the top of the mask, the one-way discharge valves on the front of the mask will allow all the condensation to escape ,which prevents fogging.

Though it is impossible to create a full seal in any mask if the user has facial hair, the shape and design of our mask allows the user to create as much of a seal as possible.

Currently, our M1, M2, and M2.5 masks are not NIOSH rated.

Our masks/filters have been independently tested at Nelson Laboratories in Salt Lake City, UT and tested at 99.9% efficiency against particulates down to .1 microns is size.

All our filter types block 99.9% of particulates down to .1 micron. This rate is known to be effective toward most airborne pathogens like Influenza and SARS.

Please be aware that our M1, M2, and M2.5 masks only filter the air being breathed in and not the air being breathed out. Because of this, they will only provide filtration for those wearing the mask. If you believe you have been infected, our masks will not protect those around you from the spread of infection. There are multiple ways the COVID-19 virus can be contracted, and we recommend following all prevention measures provided by the CDC and WHO.

If you are using our masks against airborne pathogens, the mask must be washed with a sterilizing soap and filter replaced after each wear in order to prevent exposure and spread.

CDC website:

WHO website:

Yes! We recommend hand washing the shell with hand soap and warm water. Allow the mask to dry completely upon washing.

Be sure to carefully remove filters and valves or valve caps before washing the mash shell. Filters are not washable.

Superior Protection with

Endless Possibilities