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Tuberculosis prevention and control: the particulate respirator controversy
Today'S OR Nurse
|September 1, 1994
Summary
Rising tuberculosis cases, including multidrug-resistant strains, highlight the need for better respiratory protection. Particulate respirators offer enhanced protection over surgical masks but face challenges with cost and patient acceptance.
Area of Science:
- Public Health
- Infectious Diseases
- Occupational Safety
Background:
- Tuberculosis (TB) incidence has risen since 1984/1985, with over 50,000 excess cases projected between 1985-1992.
- Many outbreaks are linked to multidrug-resistant Mycobacterium tuberculosis strains.
- Standard surgical masks may offer insufficient protection against airborne TB transmission.
Purpose of the Study:
- To evaluate the effectiveness of particulate respirators (PRs) in preventing tuberculosis transmission.
- To compare the protective capabilities of PRs versus standard surgical masks.
- To identify challenges associated with the use of recommended respiratory protective equipment.
Main Methods:
- Review of epidemiological data on tuberculosis case increases.
- Analysis of the filtration capabilities and facial fit of particulate respirators.
- Comparison of PRs with standard surgical masks in terms of protection.
Main Results:
- Particulate respirators offer superior filtration and a tighter facial seal compared to surgical masks.
- High-efficiency particulate air (HEPA) respirators are certified for 1-micron particle filtration.
- HEPA respirators are costly and can be perceived as intimidating by patients.
Conclusions:
- Particulate respirators represent a potentially more effective protective measure against tuberculosis than surgical masks.
- Barriers to PR adoption, including cost and patient acceptance, need to be addressed.
- Further research into accessible and user-friendly respiratory protection for TB control is warranted.