You should consider buying a 3-way supply grille instead of a 1-way grille if you want to improve the airflow and air distribution in your home or office. A 3-way grille has three adjustable blades that can be positioned to direct the airflow in different directions, while a 1-way grille has only one fixed blade that allows air to flow in one direction.
By using a 3-way grille, you can control the direction of the airflow and distribute it more evenly throughout the room. This can help to improve the comfort and air quality in the room, and reduce the amount of dust and other pollutants that accumulate in the air.
In addition, a 3-way grille can be more versatile and flexible than a 1-way grille. Because the blades can be adjusted, a 3-way grille can be used in different rooms or settings, and it can be adjusted to suit the specific needs of each space. This can make it a more cost-effective and convenient option for homeowners and businesses.
Overall, a 3-way supply grille can provide better airflow and air distribution than a 1-way grille, and it can be a more versatile and flexible option for your home or office.