. Initial cost $100-$500. High quality furnace filters can be cut up and used as replacements on the particle filter for coast savings on replacements. the charcoal will help nuetrilize the VOC's and smell. Should help curtail spread of fumes through building. This is not a substitute for your PPE. This is limiting impact beyond your printing space. A big plastic suit you step into for when in that room, might alleviate your parents fear of conaminat spread on your cloths.... I THINK that would be more about appeasing your parents than a real risk mittigation.... but keeping the parents (wife in my case) happy is good long term strategy.