Are nail salon fumes safe during pregnancy?

What does the evidence say about nail salon fumes during pregnancy?

1. Salon air can contain solvents including acetone, toluene, butyl acetate and ethyl acetate, plasticizers such as dibutyl phthalate and triphenyl phosphate, methacrylic acid from nail primers, and formaldehyde gas released during product use. 1
2. It is not known whether working in a nail salon raises the chance of miscarriage or birth defects, and most research has not reported a greater chance of preterm delivery or low birth weight. 1
3. In a large US study of birth defects covering 1997 to 2011, only 61 mothers worked as nail technicians, and although several heart defect groups showed raised odds ratios of 2.7 to 3.5, the authors noted that small samples produced wide confidence intervals and the associations could represent chance findings. 2
4. Ventilation is described as perhaps the single most significant factor in achieving acceptable air quality inside a salon. 3
5. Practical steps for a pregnant salon worker are getting fresh air into the room through open doors, windows, ceiling vents or exhaust systems, washing hands before and after each client, wearing the gloves listed on the product safety data sheet, using an N95 mask for filing dust, and never eating in the work area. 1

Is nail salon fumes safe in each trimester?

• First trimester. Heightened smell sensitivity peaks now, and salon air can be genuinely nauseating even at levels that pose no known risk. If you work there, ask for the seat nearest fresh air and take breaks outside.
• Second trimester. For workers, this is a good time to audit the room rather than the products: are the windows open, is the ceiling vent running, is there a source-capture fan at each table. Ventilation does more than any single product swap.
• Third trimester. Standing at a nail table for long shifts adds swelling and back strain to the picture. A stool, a footrest and regular movement break up the static posture more usefully than worrying about the polish.