Abstract: The invention is an air filtration and purification system, utilizing the filtering ability of the various elements in a potting medium for plants, water films and free water surface in contact with the roots of these plants, and the power of live plants to assimilate various odors, pollutants and in combination with commercially available air filter materials, such as activated charcoal, and other specialized granular air filter materials, to meet many air filtration requirements. The system consists of a unique flower pot, with a potting medium cavity for specially formulated potting medium which permits the free flow of ambient air upon application of a partial vacuum, and sustains the normal growth of the plant in the flower pot, and a built-in filter chamber, which is adaptable to any commercially available granular air filter material.

Abstract: The invention is a bankable apparatus or post card bank check for sending payments or contributions by mail without the use of any letter envelope. The post card bank check may be used for personal check payments or it may carry with it the dollar value of the instrument of such denominations as the issuing banks may determine and as the buyer may choose for the purpose of sending money from the sender to the recipient. A security strip is provided for use when the payor wishes to conceal the account number.

Abstract: The invention is a bankable apparatus or post card bank check for sending contributions by mail without the use of any letter envelope. The post card bank check carries with it the dollar value of the instrument of such denominations as the issuing banks may determine and as the buyer may choose for the purpose of sending money from the sender to the recipient. The post card check is for deposit only and withdrawable only with the use of the recipient's own bank check making it a safe way to transfer money from donor to recipient.