Hazardous Atmosphere & Respirators

Clean air that we breath in consist of?

• 78% Nitrogen

• 21% Oxygen

• 1% Other gases

• 4% Carbon dioxide

Example of acute medical condition?

• Diabetes

• High blood pressure

• Obesity

• Burn

At what level is consider oxygen deficiency?

• > 19.5% O₂

• > 17% O₂

• < 19.5% O₂

• < 17% O₂

How many types of respirator available?

• 1

• 2

• 3

• 4

When is NOT advisable to use air purifying respirators?

• When the task is not immediately dangerous to life and health (IDLH)

• As a last defence when other control is in place.

• When there is contaminant in the air.

• When there lack of oxygen.

When should you start changing the respirator filters?

• When you can smell or taste the contaminant

• When your eyes or throat become irritated

• When it become difficult to breathe

• You feel nauseous or dizzy

What is NOT the best method in choosing and selecting respirator?

• Cost

• Good fitting to face

• Type of air contaminant

• Medical evaluations of employees required to wear respirators

At a minimum, respirator should be check for …

• cracks, tears, scratches and holes in the body of the mask

• dirt and dust

• excessive worn or damaged thread, clips and other parts

• Malfunctioning inhalation and exhaling valve

What need to check at the respirator filter compartment?

• Correct filter used

• Filter not passed their use by date or service life

• No damage to the filter assembly

• Filter clearly labelled and correctly seated in the filter housing

Respirator should be stored properly, protected from …

• Damaged

• Contamination

• Excessive moisture

• Extreme temperature