frequently asked questions


When determining the best mask for you, it's important to think of the mask as a reusable shell that holds the replaceable filter comfortably in place. All masks come stocked with the F1 Active Carbon Filter, in terms of filtration, all masks are the same. The activity that you are doing and environment you are in along with the period of use will determine which mask or essentially shell is best for you. Here is a breakdown of the characteristics of each of our available masks.

Our M1 Mask is constructed out of Neoprene and is ideal in cold to mild weather. It's also ideal for a lower intensity activity. 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.

Our M2 Mask is constructed out of a breathable mesh material which is ideal in mild to warm weather. It's also ideal for a higher intensity activity where you may be working up a sweat. The M2 has the same single strap as the M1. Ideal for shorter periods of use (up to 2 hours).

Our M2.5 Mask is also constructed out of the same mesh material as the M2 however it has two adjustable elastic straps. One for around the back of the neck, and one for over the crown of the head. This second strap causes slightly more time for applying and adjusting the mask to fit properly, however it adds increased securement giving the user increase in mobility. Ideal for long periods of use (2 hours+).

All Masks come with our F1 Standard Active Carbon Filters which carry a 99.9% efficiency down to .1 micron. This filter is effective towards dust, fumes, odors, smoke, allergens, organic chemicals and more.

The F3 High Airflow + Active Carbon Filter provides up to 50% better breathability than our standard F1 filter. Providing up to 99% filtration plus active carbon to reduce odors and fumes, the F3 is made for long days or active work to help improve the breathability while you work in your RZ Mask.

The life expectancy of the RZ Filter depends on many variables, such as; particulate exposure density, particulate exposure duration, user breathing rate. With that said; below are our general guidelines: As the user you will have the final call given your exposure.

• 20-30 hours of continuous use in heavy dust exposure to Grain bins, Off-road, construction/demolition etc.

• 30-40 hours of continuous use in light dust exposure to Grain Bins, off-road, construction/demolition etc.
• 50-60 hours of continuous use when protecting against allergens, pollutants, odors etc.

The lifespan of the Active Carbon in the F1 and F3 filters will depend on what you are using it against and the concentration of the matter in the environment. It is recommended to change the filter if you notice any odors coming through the filter.

It is recommended to store your F1 and F3 filters away from a contaminated area.

The best way to determine your size is to refer to our sizing guide. You will find helpful measuring guidelines as well as facial illustrations for your reference.

If you measurement falls between two sizes, using weight can assist in deciding the best size.
• Medium up to 125 lbs **20% of RZ customers fit this size
• Large 125-215 lbs **60% of RZ customers fit this size
• XLarge 215+ lbs **20% of RZ customers fit this size

When measuring, please use a rigid measuring tool. You should be measuring from the height of the bridge of the nose (which is usually at the same height as bone under your eye) down to the tip of the chin. You do not want to measure past your chin. Given each person facial structure, these are the best guidelines to use when determining sizing without seeing each customer in person.

Due to current events relating to COVID-19, many of our standard items are currently out of stock as a result of high demand. Unfortunately, we are unable to hold or notify customers when out of stock items have been restocked or provide pre-orders.

If you would like to place an order with us, we recommend checking periodically as we will update our website inventory as new shipments arrive. We apologize for the inconvenience and thank you for your patience and understanding.

All RZ Mask certified dealers have a minimum advertised price for our products. Any products found advertised lower than our website or RZ Industries Amazon Page have a high risk of being either knock-off products or very outdated products. In addition, the filters for these cheaper masks may not have quality materials that have been tested for their effectiveness.

Lung health is important and not something that should be risked. Our masks are made of durable and comfortable materials, including an aluminum nose piece to ensure a proper seal. Each RZ Mask will come with two F1 active carbon filters that have been tested to block 99.9% of particulates down to .1 micron. Before ordering a discount mask, check out Fall River Lawn Care's review on doing so: We recommend making sure to verify that your mask is an RZ Mask.

Please refer to the CDC official website for more information; "Frequently Asked Questions and Answers", scroll down to "Public Health Response and Current Situation" for information pertaining to packages & products shipped from China.

More information here:

We take our commitment to safety seriously and understand the positive impacts that a business can have in a time of crisis, particularly for those that reside in the safety product/PPE industry.

As part of this focus, we are working with suppliers and municipalities and shifting priorities to direct products to medical/first responder communities across the nation, as well as those working for municipalities and cities. During this time, we are working hard to meet needs as they arise and connect with organizations both within our home state and nationally.

As part of this commitment, we are shifting our business focus and working with our suppliers, dealers, community leaders, and municipalities to ensure our product offering meets the needs of our communities, and our products are getting to those who need it most, our first responders and caretakers.

Shipping & Returns

Most orders placed at are fulfilled within one to two business days after the order has been placed. Once your package has shipped, you will receive a shipping confirmation email with a tracking ID. General shipping info:

• First Class US Shipping takes approx. 3-7 business days

• Priority US Shipping takes approx. 2-4 business days

• Express US Shipping takes approx. 1-2 business days

• First Class International Standard Shipping is an *estimated 10-21 business days

• International Priority Shipping takes approx. 5-7 business days

• UPS Worldwide Economy Shipping takes approx. 8-15 business days

(International customers: Please note that you are responsible for all duties/taxes/fees with regard to import into your country.)

On March 11th, 2020, The World Health Organization (WHO) declared COVID-19 a pandemic. WHO defines a pandemic as a global spread of a new disease. Due to concerns about hygiene and the safety of our customers and employees, we will NOT be accepting any returns or exchanges, except in the case of manufacturer defect.

After the COVID-19 pandemic is declared to be over by WHO, we will review our return policy and continue to act in the best interest of our customers and employees. Thank you for your patience and understanding.

At RZ Mask, we are proud to provide our customers with the best quality products. We guarantee any product sold by us or any of our authorized resellers to be free of manufacturing defects. If you believe you have received a defective item, please contact our customer service team immediately by email.

If contacted within one year of the original purchase date, we will review the defect and provide either a replacement or refund depending on your preference and item availability. A defective item can be replaced by the same item or an item of the same price level. We do not replace items that reflect the normal wear and tear associated with the use of the mask. Orders must have been placed on for a replacement or refund.

If you purchased through one of our authorized resellers, please contact the seller who you purchased your product through for assistance.

We strive to fulfill orders as quickly as possible to get your items out to you in a timely matter. Because of this, once an order has been confirmed, it cannot be changed or cancelled.

Customer Support Email:

Product Usage

As long as you have the correct size mask and have adjusted the nose piece to create a seal at the top of the masks 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.

Our masks are BPA and lead free.

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

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

Our official test results are available on our website:

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:

Product Care

Our filters are not washable. We recommend replacing your filter for maximum breathing protection when the active carbon has been depleted / Or visually the filter has been exhausted due to dust and other airborne particulates.

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.

Yes, the mask can be washed. We recommend hand washing the shell with hand soap and warm water. Allow the mask to dry completely upon washing.

Organic Chemical Filtration Guide


* Acetylene - G
* Butane (Iso-Butane) - E
* Butylene - E
* Butadiene - G
* Cyclohexane - E
* Decane - M
* Ethane - G
* Ethylene - M
* Heptane - E
* Heptylene - G
* Hexane - E
* Hexylene - G
* Methane - M
* Nonane - G
* Octane - G
* Octylene - E
* Pentane - G
* Propane - M
* Propylene - G

* Benzene - E
* Napthalene - E
* Styrene Monomer - E
* Toluene - E
* Toluidine - E

* Butyl Acetate - E
* Cellosolve Acetate - E
* Ethyl Acrylate - E
* Ethyl Formate - G
* Isopropyl Acetate - E
* Methyl Acetate - G
* Methyl Acrylate - E
* Methyl Formate - G
* Propyl Acetate - E

* Acetone - G
* Acetaldehyde - G
* Acrolein - G
* Acrylaldehyde - G
* Benzaldehyde - E
* Crontonaldehyde -
* Cyclohexanone - E
* Diethyl Ketone - E
* Dipropyl Ketone - E
* Formaldehyde - M
* Methyl Butylketone - E
* Methyl Ethylketone - G
* Valeric Aldehyde - E

* Acetic - G
* Acetic Anhydride - E
* Acrylic - E
* Butyric - E
* Carbolic - E
* Formic - G
* Lactic - E
* Palmitic - E
* Phenol - E
* Propionic - E

* Ethyl - G
* Anyl - E
* Butyl - E
* Cyclohexanol - E
* Isopropyl - E
* Methanol (Methyl) - M
* Propyl - E

* Carbon disulphide - G
* Dimethyl Sulphate - G
* Ethyl mercaptan - E
* Hydrogen sulphide - M
* Methyl mercaptan - E
* Propyl mercaptan - E
* Sulphur Dioxide - E
* Sulphur trioxide - M
* Sulphuric Acid - M

* Ammonia - M
* Aniline - E
* Diethyl Amine - G
* Diethyl Aniline - G
* Dimethyl Amine - E
* Ethyl Amine - G
* Nicotine - E
* Nitric acid - G
* Nitrobenzene - E
* Nitroethane - E
* Nitrogen Dioxide - E
* Nitroglycerine - E
* Nitromethane - G
* Nitropropane - E
* Nitrotoluene - E
* Urea - E
* Uric Acid - E

* Amyl - E
* Butyl - E
* Cellosolve - E
* Dioxan - E
* Ethyl - G
* Ethylene Oxide - M
* Isopropyl - E
* Methyl Cellosolve - E
* Methyl - G
* Propyl - E

* Butyl Chloride - E
* Carbon Tetrachloride - G
* Chlorine - M
* Chlorobenzene - E
* Chlorobutadiene - E
* Chloroform - E
* Chloro nitropropane - E
* Chloropicrin - E
* Dibromoethane - E
* Dichlorobenzene - E
* Bromine - G
* Dichlorodifluoro Methane - M
* Dichlorodifluoro Ethane - G
* Dichlorethane - E
* Dichloroethylene - E
* Dichloroethyl ether - E
* Dichloromethane - M
* Dichloromonofluoro Methane - M
* Dichloropropane - G
* Dichlorotetrafluoro ethane - M
* Ethyl bromide - G
* Ethyl Chloride - G
* Ethylene chlorohydrin - G
* Ethylene dichloride - G
* Fluorotrichloromethane - M
* Freon - M
* Hydrogen bromide - M
* Hydrogen chloride - M
* Hydrogen Cyanide - M
* Hydroxen Fluoride - M
* Hydrogen iodide - M
* Iodine - E
* Methyl bromide - E
* Methyl chloride - E
* Methyl chloroform - E
* Methylene chloride - E
* Monochlorobenzene - E
* Paradichlorobenzene - E
* Perchloroethylene - G

* Propyl chloride - G
* Tetrachloro ethane - G
* Tetrachloro ethylene - G
* Trichloro ethylene - G
* Vinyl chloride - G


We're always happy to help with any questions or concerns you might have. Click the link below and let us know how we can assist you.