Standaard Boekhandel gebruikt cookies en gelijkaardige technologieën om de website goed te laten werken en je een betere surfervaring te bezorgen.
Hieronder kan je kiezen welke cookies je wilt inschakelen:
Technische en functionele cookies
Deze cookies zijn essentieel om de website goed te laten functioneren, en laten je toe om bijvoorbeeld in te loggen. Je kan deze cookies niet uitschakelen.
Analytische cookies
Deze cookies verzamelen anonieme informatie over het gebruik van onze website. Op die manier kunnen we de website beter afstemmen op de behoeften van de gebruikers.
Marketingcookies
Deze cookies delen je gedrag op onze website met externe partijen, zodat je op externe platformen relevantere advertenties van Standaard Boekhandel te zien krijgt.
Je kan maximaal 250 producten tegelijk aan je winkelmandje toevoegen. Verwijdere enkele producten uit je winkelmandje, of splits je bestelling op in meerdere bestellingen.
Due to safety requirements to protect workers against hazardous gases and dust, wearing protective air-purifying respiratory devices tends to increase heat load on the workers. To the best author's knowledge no study assessed protective air-purifying respiratory devices in the harsh weather and tried to recommend one(s) in the heat. The goal of this project was to study the effect of different types of air-purifying respiratory devices (six devices) and different levels of heat stresses on the worker physiological indices and exertion ratings. Participates (sixteen young male) were exercised on an ergometer bike in a laboratory while wearing different respiratory types at different workloads, room temperature and humidity levels. Their effects related to the participants' body functions (e.g., heart rate, aural canal temperature and blood pressure), and their exertion ratings were measured. Results revealed that with wearing masks in the hot environments, all physiological indices as well as exertion ratings were significantly increased. The best respiratory device type that is available in the market is determined.