Link:https://www.amazon.com/DIMINUS-Replacement-Accessories-Aquarium-Circulate/dp/B06Y2CXZ67/ref=asc_df_B06Y2CXZ67/?tag=hyprod-20&linkCode=df0&hvadid=167139094796&hvpos=&hvnetw=g&hvrand=9915586958228150363&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9061200&hvtargid=pla-500526632112&psc=1

Recommendation for future design:

• Use air pump with larger flow volume

Link: https://www.newegg.com/p/1W7-00R6-001A5?item=9SIAU62HSF8288&nm_mc=knc-googleadwords&cm_mmc=knc-googleadwords-_-cables%20-%20internal%20power%20cables-_-oiaglh-_-9SIAU62HSF8288&source=region

Recommendation for future design:

• Can order more sensors to collect particle data inside the testbox

Link: https://www.mscdirect.com/product/details/79136081

Recommendation for future design:

• Choose 6V or output voltage the same as that for the air pump

Link:https://www.google.com/shopping/product/6301640417399906432?q=Arduino+Uno&client=safari&rls=en&biw=1440&bih=820&dpr=2&prds=eto:9459449692067926484_1,rsk:PC_9977289553973161501&sa=X&ved=0ahUKEwi6o8H8k5P4AhWulIkEHQtCDBkQ8gIIlgooAA

Link: https://poshmark.com/listing/Muji-Ultrasonic-Aroma-Diffuser-300ml-model-60693479bcbb52f9060c8b84#utm_source=gdm_unpaid

Recommendation for future design:

• Almost all humidifiers can be used in our testbed

• It will be better to choose professional aeresol generator, which will solve the problem for moisture environment and will ovide higher concentration of particle.