What is an adequate level of ventilation?
A. This can be determined solely on a case-by-case basis; we can only offer practical considerations and guidelines. Generally, if there is adequate airflow (i.e., movement of air can be felt on skin) in the application area, respirators should not be necessary. If a large amount of foam is going to be dispensed for a long period of time in a tight space with minimal airflow, then a respirator or supplied air might be appropriate.
