Game Changer: Homemade Still Air Box.
I had so much contam. Until nikaunda this homemade SAB. nilibuy storage container ya kenpoly 60L na nikapindua. Then nikatumia mkebe ya curry powder kutoboa shimo where my hands could fit. Then nikafunika the holes na ziploc know bag ndio it reduces air currents huko ndani.
To test that it works, wakisha mosquito coil huko ndani. The smoke inside should be steady rising na ikisettle hapo chini pia isisonge songe sana. Some sliiiight turbulence is normal so isikushtue.
Some lessons I learnt along the way (I guess people who were taught in lab settings know these things but sisi tumejifunza na YouTube)
- Do not flame sterilize inside a SAB. esp kama ndani kuna Isopropyl alcohol. Learnt this the hard way after nilijiwasha moto afew times. I am embarrassed that didn't learn this lesson the first time niliwaka moto. 😭
- Don't pass your hands over your open plates and cups. To avoid contam falling on them.
- While in the SAB, make slow deliberate motions. Usisonge songe sana. That picks up a draft and can lead to contam on your plate or grain jar.
- Don't let your cups rest on the floor of the SAB. if there will be an air current in your SAB, it'll likely kick up contam near the bottom. Use something kuinua whatever you're working on from the bottom. Mimi hutumia tu container za take-away nilipata Naivas.
- Be quick as possible. Open cups or grain jars for as short a time as possible.
- Don't try get wedge off your blade by kugongesha kwa the cup.
And many more that you don't learn when watching the likes of PGT.
Again,I'm sure nyinyi wenye mmesomea mambo za lab you know these things, so please forgive us who are self taught and show us the right way incase mnaona kuna mahali tunakosea.