The 3M 8822 respirator provides easy, effective, comfortable and hygienic protection of the respiratory organs from dust particles. The hemisphere shape, dual rotation, foam nose section and aluminum nose compression allow adjusting to different face sizes. Unique valves and tight coatings provide durable and comfortable protection against particles, especially in hot and humid weather. 3M 8822 respirators do not need expensive and time-consuming maintenance. In other words, 3M 8822 does not require maintenance in the true sense of the word.