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analyzing passive monitors

by mathew almost 4 years ago | 8 | 119 views | 4


My DIY Formaldehyde test kit

by mathew about 4 years ago | 6 | 287 views | 7


Borrowing a Formaldehyde Kit, Take 1

by mathew about 4 years ago | 16 | 129 views | 3


Mini-Buck vs. the Bubbles

by mathew about 4 years ago | 5 | 235 views | 4


bubble-filled adventures in low-pressure airflow

by mathew about 4 years ago | 1 | 2,719 views | 3


using soap bubbles for pump calibration

by mathew about 4 years ago | 21 | 878 views | 5



Formaldehyde Testing Kit for Lending

by mathew about 4 years ago | 5 | 83 views | 2


Evaluating low-cost optical dust sensors

by mathew about 4 years ago | 23 | 2,511 views | 5


DIY dust monitoring: Dylos in Wisconsin

by mathew about 5 years ago | 7 | 324 views | 1


a first look at dust with consumer scanners

by mathew about 5 years ago | 7 | 73 views | 1


The development of stickypad monitoring

by mathew about 5 years ago | 5 | 226 views | 5


Two weeks with a Speck

by mathew about 5 years ago | 6 | 194 views | 1