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Mathematics, 31.07.2019 04:20 gyexisromero10

If the room is 50 ft x 50 ft with a 10 foot ceiling, how many negative air machines are
required, if every machine delivers 2000 cfm, to obtain the standard air changes per hour?
how many air machines?
how many spares?

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If the room is 50 ft x 50 ft with a 10 foot ceiling, how many negative air machines are
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