In the work place the best way to control the exposure is to replace its use with a less hazardous chemical. If that cannot be accomplished then the exposure should be controlled through local exhaust ventilation. Those working with formaldehyde should avoid skin contact, and wear respiratory protection where the exposure approaches the permissible exposure limit. All states will have this free service available. Often times, requesting that the employer increase the amount of fresh air going into the heating and ventilation system will correct the problems.
Workers can file complaints in complete confidence.
OSHA does not release the name of the complainant. It's been well-maintained, but I often wonder if there are any air quality hazards older buildings may be prone to. But hazards we have encountered in older buildings include asbestos, lead, inadequate exits, fire protection, electrical systems, lack of sprinkler systems, doorways that open in rather than out, narrow walk ways, lighting, and ventilation. I work with several different computers in a typical work week. One of them has an old monitor whose resolution is poor compared to new monitors.