Is the battery for some kind of fan that pulls in air? Presumably any kind of fan would make it difficult to extract the air output properly. You should focus o

Is the battery for some kind of fan that pulls in air? Presumably any kind of fan would make it difficult to extract the air output properly. You should focus on HEPA compliant masks that make it easier to filter out things, like the Respro series -- however those are not confirmed for use to extract solvents and paints, so that might be worse than no option at all because you could believe that you are protected and actually the mask does not protect you.