Choosing a particle counter for environmental indoor air measurement often comes down to a simple question: do you need a dedicated instrument, and what condition are you willing to accept? The LASAIR III 310C from Particle Measuring Systems is one model that fits this discussion. It is worth understanding what you are paying for before you commit to a specific unit.
Quick verdict
The LASAIR III 310C is a portable particle counter, and the portability is its main advantage. You can take it from one indoor space to another instead of installing a fixed monitor. The main concern is that the unit is used-excellent rather than new, which means the purchase rests on the condition of that specific unit.
Who it suits
The LASAIR III 310C suits indoor air quality consultants, facility managers, and maintenance teams who need a dedicated particle counter for environmental indoor air measurement. If your work involves checking particle levels in different areas, this type of instrument is more appropriate than a single-location monitor. It also fits buyers who prefer a dedicated particle counter over a multi-function air quality monitor.
Particle Measuring Systems LASAIR III 310C Portable Particle Counter
This unit carries the model number LASAIR III 310C from Particle Measuring Systems. The specific strength is its portable design: you can move it from room to room for spot checks or regular surveys. That portability is what separates it from fixed air sampling equipment. The limitation is the price of USD 2,495.80, a significant amount to commit to one instrument. Portability and price are therefore the two factors to balance.
What stands out
What stands out is the clear model identification. The title gives you the exact model number and manufacturer, so there is no ambiguity about which particle counter you are evaluating. When an instrument has this level of naming clarity, it is easier to discuss specifications and compare notes with colleagues.
Meaningful trade-offs
The most meaningful trade-off is the used-excellent condition. A used instrument can be a practical way to get a dedicated particle counter, but you are relying on the condition grade rather than a brand-new unit. That reality matters more than any optional feature. If you prefer new equipment, this used purchase requires a different mindset.
Bottom line
At USD 2,495.80, the LASAIR III 310C is a credible choice for anyone who needs a dedicated particle counter for environmental indoor air measurement. Weigh the price against your expected usage, and the decision becomes clearer.
