Air changes in life science lab

[cme]

My calcs indicate 9 air changes per hour for the labs .... 100% OSA ..... 49 deg F space temp

The writeup from the school says 10-12 ACH occupied

I am providing 15.6 ACH

Is this adequate for control of odors?

The spaces are for cadaver disection .... no BSC's

 

[SAK9]

Given that there is no BSc and equipment load is minimal,about 10-12ACH is adequate

 

[stanlsimon]

The orientation of the exhaust and make-up air distribution can have a signifigant effect on the airborn contaminants. Try to get the exhaust as close to the contaminants as possible. Use of slot exhaust right down on the disecting table is an example. Once the contaminants waft around in the room much more air flow is required for dilution. Avoid supplying the make-up air in such a way that aspirates the contaminants.

Forgive me for being ignorant but what is a BSC?

 

[imok2]

A good design guide for energy efficient labs can be accesed at :

http://ateam.lbl.gov/Design-Guide/

 

[walkes]

Stanlsimon

BSC = Biological Safety Cabinet (really nice fume hood)

 

[tombmech]

walkes,
You surely know better than that, especially if you've ever connected a Type B2 BSC to ductwork that serves fume hoods. ;-)

 

[cufcom]

A BSC (or MSC class II - MicroBiological safety cabinet)provides user safety and product safety (no contamination or cross contamination).
A fume hood provides user safety only.

 

[walkes]

Ok, Ok, so its a really, really nice fume hood with lots of bells and whistles.

 

[SAK9]

CME,

It is likely that disection could be on a necropsy table.Necropsy table has a perforated surface thru which air is drawn and exhausted out through the building exhaust.This would protect the doc from any bad odours.Check with the end user if they intend to use such an equipment.

Walkes,

interesting definion for the bsc!