Joints can be separated into two classes: functional and structural. Joints are divided into three different functional classes. They are synarthroses, amphiarthroses, and diarthroses. Synarthroses means the joint is immovable, amphiarthroses means the joint is slightly moveable, and diarthroses means the joint is freely moveable.
minimum recommended protection lightweight and easy to use requires no maintenance osha cdc epa and nyc doh mh recommend using a n95 disposable respirator as minimum protection from mold and dust
Each has slightly different characteristics, so letâs discuss which solution is best for the types of tasks you may encounter. Weâll start with the 6001 organic vapor cartridge. This is a respirator cartridge that absorbs lots of bad smells as well as vapors from things like solvents. Solvents are often used in painting. They are present when you are using turpentine, paint thinner, and lacquer thinner.