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Chemical SubstancesGreen-nano Herbal Substances
Cockroaches and ants die immediatelyCockroaches and ants gradually disappear
2 weeks effectiveness 4 months effectiveness
Spray by apparatus identified substances with dangerous chemical substancesSpray by Hydro Jet Type : natural substances mixed with water
Cannot destroy the whole colonyThe chemical is brought back to the main nest and destroys that as well
Has side effects on animals and humansNot harmful to trees, animals and the human body
Kitchen utensils must be put away before sprayingWasting no time to put away utensils, immediate spraying
Dead cockroaches decay to dust Dead cockroaches do not decay
Terrible chemical smellNatural herbal smell
Lower effectiveness over timeLonger effectiveness over time