से सेकेन्डाव बार हगारनाया जुदि फैलासमारि बिबांनि 70 % नि बांसिन जायो आनजादाव थानाय संफ्लआ गोगो जागोन ।
If the air expelled in one second is as much as 70 of the tidal volume the lung under scrutiny will be normal .