2341
Despite the dangers of hard drive failure from such foreign objects , hard drives generally allow for ventilation ( albeit through a filter ) so that the air pressure within the drive can equalize with the air pressure without .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None