IMO, "air fresheners" do not really freshen the air. Mas appropriate siguro tawagin na lang sila na "scent" kasi nilalagyan lang nila ng scent ang interior ng ride. Moreover, kung may foul smell, di rin nila tinatanggal yung micro organisms causing that foul smell but rather cover them up. What I really do not like about them is that their scent remains on the interior of the car, maaring sa umpisa e mabango, pero katagalan nagiging pungy yung smell, ang sakit sa ilong and HINDI FRESH ang amoy ng car. Totoo rin yung side effect nila sa acu, since sticky yung molecules nila, they tend to stick sa fins ng evaporator & collect dust in the process causing faster build up of air obstruction.

I do not use "air freshener" sa car. Basta palagi malinis, the car remains FRESH smelling lalo na kapag sumasakay si misis (ang bango nya kasi e). Plus factor din yung di ako nag-smoke & I don't allow passengers to smoke in my ride. Seldom din kami kumakain inside the car & if ever kumain man, dispose agad ng packaging and leftovers sa next gas station trash bin.

Nevertheless, I might try the ionizer and look into the dried eucaliptus.

Opinion lang po.