N95 respirator use during advanced pregnancy

Area of Science:

• Physiology
• Occupational Health
• Maternal Health

Background:

• N95 filtering facepiece respirators (N95 FFRs) are crucial for protecting against airborne pathogens.
• Understanding the impact of N95 FFR use on pregnant individuals is essential for occupational safety.

Purpose of the Study:

• To assess the physiological and subjective effects of wearing an N95 FFR in late-stage pregnancy.
• To compare these effects between pregnant and nonpregnant women.

Main Methods:

• A comparative study involving healthy pregnant and nonpregnant women (n=22 each).
• Measurements included physiological parameters (heart rate, oxygen saturation, etc.) and subjective perceptions (exertion, comfort).
• Participants underwent testing during exercise and sedentary activities for 1 hour with and without N95 FFR use.

Main Results:

• No significant differences were observed in heart rate, respiratory rate, oxygen saturation, or temperature between pregnant and nonpregnant groups.
• Subjective measures of exertion and thermal comfort did not differ significantly.
• Fetal heart rate remained unaffected by N95 FFR use.

Conclusions:

• Healthy pregnant women can safely wear an N95 FFR for up to 1 hour during moderate activity and rest.
• N95 FFR use does not induce significant physiological or subjective changes in pregnancy.
• Findings support the use of N95 FFRs in pregnant healthcare workers and others in occupational settings.