Air Extraction and Ventilation System Design

What is one of the reasons why air extraction and ventilation systems are often unsatisfactory?

Unfavorable location and inadequate maintenance

What is emphasized as essential to prevent the reduction of efficiency in air extraction and ventilation systems?

Regular maintenance

How does air extraction and ventilation influence the degree of thermal comfort?

By increasing the chance of a draft

What is one of the measures at the individual level to reduce exposure to chemical substances?

Spending as little time as possible in rooms with contaminated air Signup and view all the answers

What is the required volume of fresh air per person dependent on?

The degree to which the work is physically demanding Signup and view all the answers

What does the text suggest as a way to reduce people’s exposure to contaminated air?

Spend as little time as possible in rooms with contaminated air Signup and view all the answers

What is the advantage of carrying out activities involving chemical substances outside normal working hours?

Fewer people are exposed to the substances Signup and view all the answers

When are special masks fitted with filters recommended for use?

When measures aimed at source or exposure are not feasible Signup and view all the answers

What is the primary purpose of using personal protective equipment according to the text?

To avoid exposure to chemical substances Signup and view all the answers

Why should gloves and aprons be worn when working with liquids that can be absorbed through the skin?

To prevent skin lesions Signup and view all the answers

What is the recommended method to reduce the absorption of chemical substances through the skin?

Ensuring rapid treatment of skin lesions Signup and view all the answers

What kind of protection does wearing dust masks offer according to the text?

Protection against coarse, chemically harmless dust particles Signup and view all the answers

When is it necessary to use personal protective equipment according to the text?

When measures aimed at source or exposure are not feasible or adequate Signup and view all the answers

What is considered essential according to the text when using special masks?

Instruction in the use of masks Signup and view all the answers

What is unproven according to the text regarding the protective effect of gloves?

The protective effect of special skin creams Signup and view all the answers

What kind of protection do dust masks offer against gases according to the text?

No protection against any type of gas Signup and view all the answers