Amazon's listing policies require all fire and smoke masks to be certified to the OSHA 29 CFR 1910.134 standard and/or the ASTM E2952-14 standard. Amazon defines these products as follows:
"Fire and smoke masks" are air-purifying respiratory protective smoke escape devices (RPEDs), including air-purifying respirators used to protect a person while escaping from a fire by removing certain contaminants of fire-generated products of combustion from the inhaled air. Such products may use a filter, cartridge, canister, sorbent, or catalyst (or combination of these items) to remove such contaminants.
In order to sell these products on Amazon, you must apply and submit the following to firstname.lastname@example.org:
By applying to sell these products, you certify that all materials you submit in conjunction with your application are true, authentic, and accurate. Note that Amazon may remove your selling privileges for failure to meet these requirements.