When buying a gas mask you have an important decision to make: which type of mask to choose. This is a choice you should make taking into account the number of times you will use it, whether it will be for frequent or occasional use.
Reusable gas mask. This type of mask is a device designed to be resistant, so that it can last for several years. This is recommended for those who work in environments with toxic gases, as they will need it on a frequent and daily basis.
Disposable gas mask. Disposable gas masks are intended for occasional, non-continuous use. The manufacturing materials are less durable and generally less resistant. They are also less expensive.