Ingrid cleaners develops promotional materials and product demonstrations to easily communicate the benefits of its cleaning products. In this scenario, Ingrid cleaners tries to enhance the observability of its products.
When Ingrid does demonstrations for the products, she is allowing customers or potential customers to see the value they would be getting from the product. Normally, people can perceive the item as one thing but they are able to see how truly great it is when they test it out.