PPE is divided into four primary categories of personal protective equipment, based on the level of danger one may be exposed to. It's important to understand the differences between these and purchase equipment suitable for your work.
Level A is required for the most hazardous work environments, including self-contained breathing apparatus, a full suit to protect against chemical exposure, inner and outer gloves and safety boots.
Level B is a step below Level A, still requiring the maximum protection afforded by breathing apparatus but without the need for as comprehensive protection for one’s skin and eyes.
Level C PPE should be worn in a highly hazardous environment but with less stringent requirements for personal protective equipment or site workwear than Levels A or B. You’re still required to wear air purification masks as a precaution against airborne hazards along with chemical-resistant clothing and safety footwear.
Level D is the most commonly used level of PPE – primarily used in the construction industry by tradespeople to keep themselves safe from hazards faced whilst working. Level D PPE regulations require only that coveralls along with safety shoes are worn.