Flat-D in an airplane

Do planes have fart filtering technology??
Their systems actually gradually allow the air to seep out of the cabin, while bringing fresh air back in. So, do they have a 'Fart Filter'.(not a Flat-D).. Not really, they just allow the airplane to fart the human farts out of the aircraft. According to Boeing, their planes are capable of taking out between 95 and 99 percent of airborne contaminants, and the cabin's air is completely refreshed in under five minutes