Equipments - Clean Room Validation and Monitoring
I have a doubt about Clean room monitoring equipment used for validation & monitoring. I have come across handheld equipment that range from Rs.50,000 to Rs.20,00,000 all providing almost the same particle size data as per ISO14644-1.
Major technical specification difference is on connectivity and printed reports.
My question is will a cheaper hand help particle monitor calibrated frequently suffice for monitoring purpose?? and what advantages do I actually get from the expensive instrument.